Carriage-door lock.



No. 651L001. Patented lune 5, I900.

T. P. WENDELL.

CARRIAGE DOOR LOCK.

(Application filed Aug. 28, 1896;)

(No Model.)

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WITNESSES: lNVENTOR:

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UNITED STATES PATENT QFFIGE.

THOMAS PATTON WVENDELL, OF PHILADELPHIA, PENNSYLVANIA.-

CARRIAGE-DOOR LOCK.

SPECIFICATION forming part of Letters Patent No. 651,001, dated June 5, 1900.

Application filed August 28,1896.

T0 aZZ whom, it may concern:

Be it known that- I, THOMAS PATTON WEN- DELL, of Philadelphia, in the State of Pennsylvania, have invented certain new and useful Improvements in Carriage-Door Locks, whereof the following is a specification, reference being had to the accompanying draw lugs.

- My present invention is particularlyapplicable to carriage-doors formed as open frames by reason of the arrangement of the lock mechanism within a narrow vertical casing,which is thus adapted to be directly mounted upon the narrow vertical side frame or pillar of such a door without the addition of an unsightly projecting block upon said pillar, which has heretofore been necessary to support a lock of ordinary construction.

Aside from the particular arrangement of the mechanism aforesaid, it is the object of my invention to provide a rotary-bolt lock of simple and efficient construction which may be operated either from the outside of the door by means of a knob or handle mounted upon a rotatable axial spindle or from the inside of the door by means of a lever-handle upon the lock-bolt.

In the accompanying drawings I have shown a convenient embodiment of my invention, wherein Figure 1 is an elevational view of the outer side of a lock adapted, as aforesaid, for an open-frame carriage-door. Fig. 2 is an elevational view of the inner side of said lock. Fig. 3 is a plan sectional View on the line 3 3 of Fig. 1. Fig. 4 shows the application of said look upon the door, the same being an inner side elevation corresponding to that of Fig. 2.

In said figures, A represents the standing pillar of the carriage-framework, in which is fitted the door B. The lock-casing consists of an outer member 0, of L-shaped cross-section, as indicated in Fig. 3, and an inner plate 0. Between said two casing members is mounted the rotary bolt of the lock, comprising a member d, adapted to protrude through the casing G and engage a suitable keeper-plate in the standing pillar of the carriage-frame A when the door is shut, and the laterally-projecting lever-handle D, adapted to rotativ'ely withdraw said bolt when it is dethe member 0.

sired to open the door. Said two bolt mem- Serial No. 604,233. (No model.)

bers D and d are preferably integral and mounted for'rotation within the casing C by means of axially-projecting hubs d, which are respectively seated in opposite openings in the outer member of the casing C and the inner member 0 of the casing. The inner casing member 0 is secured in proper relation with the outer member 0, conveniently by lugs 0 upon the latter riveted through It is obvious, however, that said connection may be made in anyconvenient manner. Said rotary bolt is provided with a square axial socket d for the operaa ing-spindle f of the knob F, said spindle being entered from the outside of the door and secured in proper position with respect to the lock-casing by means of the nut upon its inner extremity.- (See Fig. 4.)

The convolute spring E is secured at its inner extremity upon the casing O and at its outer extremity e engages with the shoulder 01 of the rotary bolt, and thus serves to maintain the bolt member (1 protruding from the casing O. The thrust of the spring E is limited by the shoulders d upon the bolt, which overlap the edges of the aperture in the casing 0, through which the lever-handle of the bolt is adapted to oscillate.

In order that in closing the door B the bolt member 01 may engage with its keeper without manipulation of the lock, the inner face of said member d is curved, as shown in Fig. 3, so as to be thrust inward by contact with the edge of said keeper.

The spindlefof the knob or handle F coincides with the axis of rotation of the lockbolt, with which it is directly connected, as aforesaid. It is therefore obvious that the protruding member 01 of said bolt may be withdrawn either by rotation of the knob or handle'F or by lateral movement of the lever-handle D.

The form of my invention which I have shown in the several figures of the drawings is adapted for application upon an untrimmed door-frame, the lever-handle D extending lat erally from the lock-casing, flush with the surface thereof, as best shown in Fig. 3. It is, however, obvious that for a trimmed or upholstered door-frame allowance may be made for the thickness of the upholstery covering the lock-casing and said handle be offset from the face of the casing C, as indicated in dotted lines in Fig. 3.

I am aware that it is not broadly new to fulcrum the bolt of a look within a casing and provide it with an exterior lever-handle, and I do not desire to broadly claim such construction. I believe it to be broadly new, however, to provide a lock of the class described with an actuating-spindle directly connected with its rotary bolt in line with its axis of rotation. Such a construction is of obvious advantage in the simplification of the parts and consequent reduction in the lateral dimensions of the casing, which make it particularly applicable to doors of the class described. I therefore do not desire to limit myself to the precise construction which I have shown and described, as it is obvious that various changes may be made therein without departing from the spirit of my invention.

I therefore claim In a lock, the combination with an exterior casing, of a bolt arranged to oscillate in said casing, a spring arranged to'normally project said bolt through the side wall of said casing, a lever-handle integral with said bolt, and projecting laterally through said casing, a bolt-actuating spindle fixed in axial relation with said bolt, and a knob secured upon said spindle exterior to said casing, substantially as set forth.

'1. PATTON WENDELL.

\Vitnesses:

ANNA R. THOMAS, ADELAIDE C. THOMAS. 

